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Home -> Beauty & Health -> Health & Wellness -> Vitamins & Nutrition -> Supplements -> Doctor's Best

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Doctor's Best Best L-Tryptophan Powder -- 500 mg - 50 g (Write A Review)

USP Pharmaceutical grade. Featuring Ajinomotos TryptoPure. L-tryptophan is an essential amino acid (protein building block) in human nutrition. Essential amino acids are not synthesized by the body and must be obtained in the diet. The L-tryptophan in this product is manufactured and tested for purity according to the United States Pharmacopeia (US..

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Vitacost.com

$21.50

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Doctor's Best Suntheanine� L-Theanine -- 90 Vegetarian Capsules (Write A Review)

Amino Acid L-Theanine Supplement. Relaxation Without Drowsiness. Reduces Stress and Tension. Suntheanine is the premier, patented form of the amino acid L-theanine. Suntheanine is the purest for of L-theanine on the market today. L-theanine is an amino acid derived from green tea that is responsible for the relaxation-inducing effect of tea consump..

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Vitacost.com

$15.64

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Doctor's Best Best Glucosamine Sulfate -- 750 mg - 180 capsules (Write A Review)

Helps Maintain Healthy Joints. Supports normal healthy joint function. Helps maintain healthy cartilage in joints. Contains sodium-free, potassium stabilized glucosamine sulfate.

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Vitacost.com

$11.10

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Doctor's Best Best 5-HTP -- 60 Capsules (Write A Review)

Helps maintain mental and emotional well-being. 5-HTP (5-hydroxy L-tryptophan) is a naturally occurring metabolite of the amino acid tryptophan. 5-HTP is converted in the brain to serotonin, a neurotransmitter substance found at the junctions (synapses) between neurons. 5-HTP helps maintain mental and emotional well-being and promotes healthy sleep..

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Vitacost.com

$8.89

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Doctor's Best Quercetin Bromelain -- 180 Capsules (Write A Review)

Quercetin modifies the bodys response to antigenic substances, inhibits the formation of free radicals and supports circulatory health by promoting integrity of tissues in small blood vessels. Bromelain supports tissue comfort and may enhance Quercetin absorption. Quercetin-Bromelain supplies the flavonoids Quercetin extracted from seed pods of the..

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Vitacost.com

$11.10

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Doctor's Best High Absorption CoQ10 -- 100 mg - 60 Capsules (Write A Review)

Supports Heart Function, energy Production in Cells. Dietary Supplement with Bioperine. High Absorption CoQ10 contains pure, vegetarian coenzyme Q10, plus Bioperine. CoQ10 is a nutrient that supports heart function and promotes energy production in cells. Bioperine, an herbal extract derived from black pepper fruit, promotes absorption of nutrients..

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Vitacost.com

$10.17

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Doctor's Best Best MSM 1500 -- 1500 MG - 120 Tablets (Write A Review)

Bioavailable Natural Sulfur. Maintains Healthy Connective Tissue.. Best MSM supplies pure ctystalline MSM (methylsulfonylmethane.) MSM is a naturally-occurring source of organic sulfur that is easily absorbed and used by the body. Taken up from the soil by plants, MSM found in food is largely lost during food processing, storage and cooking. MSM su..

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Vitacost.com

$8.06

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Doctor's Best Best Ubiquinol featuring Kaneka's QH� -- 100 mg - 60 Softgels (Write A Review)

The Reduced Form of Coenzyme Q10. Powerful Antioxidant Action. Mitochondrial Support to Enhance Cellular Energy Production. Best Ubiquinol featuring Kaneka QH contains the reduced form of coenzyme Q10. Both ubiquinol (CoQ10-H2) and ubiquinone (CoQ10) are metabolically active, and are interchangeable in the body according to needs. Each form has uni..

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Vitacost.com

$27.10

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Doctor's Best Best Lumbrokinase -- 20 mg - 60 Vegetarian Capsules (Write A Review)

Enzymatic Support To Help Maintain Healthy Cardiovascular Function. 720,000 Lumbrokinase Units Per Serving. Lumbrokinase is the name of a group of highly stable fibrinolytic enzymes originally derived from the earthworm Lumbricus rubellus. These proteolytic enzymes have been studied and utilized extensively in China for many years. Research suggest..

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Vitacost.com

$47.90

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Doctor's Best Best Red Yeast Rice with CoQ10 -- 1200mg - 60 Tablets (Write A Review)

Benefits Adult Men Women as Part of a Healthy Lifestyle Plan. 1200mg Red Yeast Rice/30mg CoQ10. Best Yeast Rice contains rice that has been naturally fermented with red yeast (Monascus purpureus) according to traditional methods. Produced domestically, this product is similar to red yeast rice that has been used in culinary applications in Asia si..

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Vitacost.com

$11.87

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Doctor's Best Celadrin -- 500 mg - 90 Capsules (Write A Review)

Supports Joint Function Mobility. Celadrin is a proprietary blend of esterified fatty acids that have been shown to benefit joint function and flexibility. Being a complex molecule consisting of various fatty acids, it is able to penetrate cell membranes, enhancing membrane permeability and cell-to-cell signaling.

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Vitacost.com

$12.70

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Doctor's Best Best Benfotiamine -- 150 mg - 120 Vegetarian Capsules (Write A Review)

Helps Maintain Healthy Cells. Benfotiamine (S-benzyolthiamine-O-monophosphate) is a synthetic derivative of thiamin, belonging to the family of compounds known as allithiamines.. Benfotiamine is fat-soluble and more bioavailable and physiologically active than thiamin. Benfotiamine raises the blood level of thiamin pyrophosphate (TPP), the biologic..

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Vitacost.com

$14.44

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Doctor's Best 5-HTP Enhanced w/ Vitamins B6 & C -- 120 Vegetarian Capsules (Write A Review)

Helps Maintain Mental and Emotional Well-Being. 5-HTP (5-hydroxy L-tryptophan) is a naturally occurring metabolite of the amino acid tryptophan.5-HTP is converted in the brain to serotonin, a neurotransmitter substance found at the junctions (synapses) between neurons.5-HTP helps maintain mental and emotional well-being and promotes healthy sleep.

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Vitacost.com

$20.30

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Doctor's Best Best D-Ribose -- 8.8 oz (Write A Review)

Science-Based Nutrition. -- Supports healthy energy levels in heart and muscle tissue. -- Maintains normal heart function. -- Decreases free radical formation during exercise. Ribose is an essential pentose (5-carbon) sugar utilized by the body to synthesize DNA, RNA and produce energy. Ribose is a fundamental building block of adenosine triphospha..

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Vitacost.com

$25.50

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Doctor's Best High Absorption CoQ10 -- 100 mg - 60 Softgels (Write A Review)

Supports Heart Funtion, Energy Production in Cells. High Absorption CoQ10 contains pure, vegetarian coenzyme Q10, plus Bioprene and Vitamin E, in an olive oil base. CoQ10 is a nutrient that supports heart function and promotes energy production in cells. Bioperine, an herbal extract derived from black pepper fruit, promotes absorption of nutrients ..

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Vitacost.com

$11.31

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Doctor's Best Best MSM -- 1000 mg - 180 Capsules (Write A Review)

Bioavailable Natural Sulfur. Maintains Healthy Connective Tissue. Best MSM supplies pure crystalline MSM (methylsulfonylmethane). MSM is a naturally-occurring source of organic sulfur that is easily absorbed and used by the body. Taken up from the soil by plants, MSM found in foods is largely lost during food processing, storage and cooking. MSM su..

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Vitacost.com

$9.50

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Doctor's Best High Absorption CoQ10 -- 200 mg - 60 Vegetarian Capsules (Write A Review)

Dietary Supplement with BIOPERINE. Supports Heart Function, Energy Production In Cells. High Absorption CoQ10 contains pure, vegetarian coenzyme Q10, plus Bioperine. CoQ10 is a nutrient that supports heart function and promotes energy production in cells. Bioperine, an herbal extract derived from black pepper fruit, promotes absorption of nutrients..

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Vitacost.com

$17.87

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Doctor's Best Best Serrapeptase -- 40,000 Units - 270 Vegetarian Capsules (Write A Review)

Serrapeptase is a proteolytic enzyme isolated from the non-pathogenic bacteria Serratia species found in the digestive tract of the Japanese silkworm. The enzyme is used by the worms to digest their cocoons. Serrapeptase has been used as a nutritional supplement in Europe and Asia for nearly three decades. Each vegetarian capsule of Best Serrapepta..

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Vitacost.com

$34.49

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Doctor's Best Best Serrapeptase -- 40,000 Units - 90 Vegetarian Capsules (Write A Review)

40,000 units per Veggie Cap. Serrapeptase is a proteolytic enzyme isolated from the non-pathogenic bacteria Serratia species found in the digestive tract of the Japanese silkworm. The enzyme is used by the worms to digest their cocoons. Serrapeptase has been used as a natural supplement in Europe and Asia for nearly three decades. Each vegetarian c..

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Vitacost.com

$13.45

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Doctor's Best CoQsol CF -- 100 mg - 30 Softgels (Write A Review)

Science-Based Nutrition. Enhanced Bioavailability. Potent Antioxidant Protection. Dietary Supplement to Support Heart Function CoQsol-CF is a new patent pending form of CoQ10 that provides enhanced bioavailability of this critical nutrient. CoQsol-CF provides CoQ10 in a crystal-free, oil-based solution with mixed tocopherols for added antioxidant p..

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Vitacost.com

$9.34

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Herbs, Vitamins, Minerals, Other Nutrition, Supplements, Diet, Sports Nutrition, Multivitamins

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